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164275408 = 24112531601
BaseRepresentation
bin10011100101010…
…10010011010000
3102110010001111101
421302222103100
5314023303113
624144554144
74033214023
oct1162522320
9373101441
10164275408
1184802600
1247022954
13280597ab
1417b631ba
15e64e2dd
hex9caa4d0

164275408 has 60 divisors (see below), whose sum is σ = 356672484. Its totient is φ = 73216000.

The previous prime is 164275381. The next prime is 164275409. The reversal of 164275408 is 804572461.

It can be written as a sum of positive squares in 2 ways, for example, as 149621824 + 14653584 = 12232^2 + 3828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164275409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101808 + ... + 103408.

Almost surely, 2164275408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164275408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178336242).

164275408 is an abundant number, since it is smaller than the sum of its proper divisors (192397076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164275408 is a wasteful number, since it uses less digits than its factorization.

164275408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 164275408 is about 12816.9968401338. The cubic root of 164275408 is about 547.6765989250.

It can be divided in two parts, 164 and 275408, that added together give a palindrome (275572).

The spelling of 164275408 in words is "one hundred sixty-four million, two hundred seventy-five thousand, four hundred eight".

Divisors: 1 2 4 8 11 16 22 44 53 88 106 121 176 212 242 424 484 583 848 968 1166 1601 1936 2332 3202 4664 6404 6413 9328 12808 12826 17611 25616 25652 35222 51304 70444 84853 102608 140888 169706 193721 281776 339412 387442 678824 774884 933383 1357648 1549768 1866766 3099536 3733532 7467064 10267213 14934128 20534426 41068852 82137704 164275408